The dual of the Ahlswede-Zhang identity
The authors introduce the dual of the Ahlswede-Zhang identity [Adv. Math. 80, No. 2, 137-151 (1990; Zbl 0705.05002)] and prove it using the Ahlswede-Zhang identity. They also provide a direct proof of the dual in the style of the second author [J. Comb. Theory, Ser. A 62, No. 1, 168- 169 (1993)].
scientific article; zbMATH DE number 665840